发明名称 |
Multiple-layer films |
摘要 |
A multiple-layer film having a substrate layer of high density polyethylene or a propylene homo- or co-polymer, and, on at least one surface of the substrate, a heat-sealable layer of a propylene co-polymer containing from 80 to 95% of propylene, the balance being a C4 to C10 olefin. The substrate and surface layers exhibit a monoclinic crystalline structure.
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申请公布号 |
US4252851(A) |
申请公布日期 |
1981.02.24 |
申请号 |
US19790008110 |
申请日期 |
1979.01.31 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES LIMITED |
发明人 |
LANSBURY, ROBERT C.;HEGGS, THOMAS G. |
分类号 |
C08F210/00;B29C49/00;B29C55/00;B29C55/02;B29D;B32B;B32B27/00;B32B27/08;B32B27/32;C08F10/00;C08J5/18;C08L23/10;C08L23/14;C08L23/18;(IPC1-7):B32B27/00 |
主分类号 |
C08F210/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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